1990464298 has 16 divisors (see below), whose sum is σ = 3118144896. Its totient is φ = 951155920.

The previous prime is 1990464253. The next prime is 1990464299. The reversal of 1990464298 is 8924640991.

It is a super-2 number, since 2×1990464298² = 7923896243225265608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1990464299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38568 + ... + 73948.

It is an arithmetic number, because the mean of its divisors is an integer number (194884056).

Almost surely, 2^1990464298 is an apocalyptic number.

1990464298 is a deficient number, since it is larger than the sum of its proper divisors (1127680598).

1990464298 is a wasteful number, since it uses less digits than its factorization.

1990464298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36629.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 1990464298 is about 44614.6197787228. The cubic root of 1990464298 is about 1257.9154871557.

The spelling of 1990464298 in words is "one billion, nine hundred ninety million, four hundred sixty-four thousand, two hundred ninety-eight".